Home / 87,554.60-131,429.10-54,312.20

Finding the Fourth Proportional to 87,554.60, 131,429.10 and 54,312.20

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Solution

The fourth proportional to 87,554.60, 131,429.10 and 54,312.20 is: 81,528.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,554.60 : 131,429.10 = 54,312.20 : x
  2. Step 2: Convert to fraction form
    87,554.60/131,429.10 = 54,312.20/x
  3. Step 3: Cross multiply
    87,554.60x = 131,429.10 × 54,312.20
  4. Step 4: Simplify right side
    87,554.60x = 7,138,203,565.02
  5. Step 5: Solve for x
    x = 7,138,203,565.02/87,554.60
  6. Step 6: Final answer
    x = 81,528.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.